Extreme Weather Sweeps Across US, Impacting Over 200M

Heatwaves, blizzards, tornadoes, and floods disrupt travel and daily life nationwide

Mar. 17, 2026 at 6:36am

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Extreme weather conditions have impacted over 200 million people across the United States, with a surprising heatwave in California, blizzards burying parts of the Midwest, and storms rolling into the East Coast. The chaotic weather has led to widespread disruptions, including over 4,700 flight cancellations, school closures, and a deadly fire in New York City.

Why it matters

The convergence of these extreme weather events across such a large portion of the country highlights the increasing vulnerability of infrastructure and communities to climate variability. The widespread disruptions to travel and daily life underscore the significant economic and social costs associated with these events.

The details

The storm system that brought blizzard conditions to the Midwest moved toward the East Coast, bringing heavy rain and tornado warnings. In the West, a heat dome over the Southwest is expected to push temperatures into the triple digits in Arizona for much of the week, while California will see temperatures approaching 90°F. In Nebraska, dry and windy conditions are exacerbating the largest wildfire in the state's history. Hawaii experienced landslides, road closures, and flooding due to unrelenting rains.

  • Since Saturday, nearly 3 feet (61 centimeters) of snow had fallen in the northern Wisconsin town of Mountain.
  • On Monday, more than 4,700 flights across the U.S. were canceled, causing airport delays.
  • On Monday afternoon, a tornado watch had expired without significant development in Washington, D.C.
  • On Sunday, the National Weather Service confirmed four tornadoes in Missouri, causing roof and tree damage.
  • Temperatures in Arizona are expected to soar into the triple digits for most of the week.

The players

Karen Bass

The mayor of Los Angeles, who noted that the high temperatures in California are 'not normal for March' and a sign of climate change's impact.

Jim Pillen

The governor of Nebraska, who stated that 'Mother Nature is throwing a doozy at us' in reference to the large wildfire in the state.

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What they’re saying

“We must not let individuals continue to damage private property in San Francisco.”

— Robert Jenkins, San Francisco resident (San Francisco Chronicle)

“Fifty years is such an accomplishment in San Francisco, especially with the way the city has changed over the years.”

— Gordon Edgar, grocery employee (Instagram)

The takeaway

The extreme weather events across the United States underscore the growing challenges posed by climate change and the need for communities to adapt and mitigate the impacts of these increasingly frequent and severe weather patterns.